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Enter the TEST 3 MODE
Is the voltage value
between pins 10 (WH) and
4 (BL) of CON3 115 V AC?
Is Er-dH displayed?
Yes
Yes
Yes
No
Yes
Yes
No
CON6
CON3
Replace
MAIN PCB
Replace
MAIN PWB
Main
PCB
WH
BL
FUSE-M
CON3
10
4
DEF-Heater
Housing-A
BO
D-Sensor
7
8
BO
2
CON6
BO
BO
7
6
BL
BN
BK
2
1
7
6
1
3
1
2
BK
Is the connec tion loose?
pin4 BL
pin10 WH
pin4 BL
pin10 WH
115V
pin4 To pin 10
Result
Test Point
Reset TEST3 MODE(Normal)
Is the voltage value between
pins 10 (WH) and 4 (BL) of
CON3 for 0 V AC?
0 ~ 2 V
Reset/Norm op
Result
Test Point
Defrost Heater Error
Wiring dia gram
Relay Open
Reconnect
Relay operation